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Dairy Cattle And Reproduction

Subjects : industries, dairy
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Indicator of sperm production. the bigger the scrotal circumference the bigger volume of sperm because more seminal vesicles available to produce the sperm






2. Way to know everything is alright with the breeding male






3. (FSH) causes egg to mature in females






4. ~60 days before calving






5. Located directly in front of the cervix. fertilized egg implants here. connected to two uterine horns. implantation occurs on the same side as ovulation occurred.






6. 2 month growth cycle. stored in the epididymis of the bull






7. 1. visual evaluation - 2. scrotal circumference - 3. penis and prepuce observation - 4. rectal palpation - 5. libido test - 6. semen evaluation






8. Way to know everything is alright with the breeding male






9. Larger the cow - more milk is produced; smaller the cow - less milk is produced






10. Check feet and legs - look for masculine traits in build such as crest and muscling






11. 265-285 days






12. (switzerland) 2nd in size and milk production - most muscle -






13. (male) definition: duct located outside of the testes. 3 parts: head - body - tail. 4 Functions:concentrate sperm - store sperm - transport sperm - site of sperm maturation. entire process takes ~40-60 days






14. BST given to dairy cattle makes the mammary gland more persistent - helps produce more milk. good as Long-term because it does not cause cow to bulk up - provides more milk/cow Which means less cows needed - less cows need to be given feed - lower co






15. Cycle that lasts weeks (ovulation->hormone cycles->ovulation)






16. So when offspring are born - there is more food to be found for energy stores and fat deposits IN THE SPRING






17. Failure to have one testis (gonad) to descend






18. Cycle that lasts weeks (ovulation->hormone cycles->ovulation)






19. 1-3 days






20. 283 days






21. Produce testosterone. located between the seminiferous tubules






22. Can produce 200 calves naturally (~100 bulls) - top 1-2% will grade like him. everything left to chance if no AI performed






23. Hold the penis in the bulls body when not in use. releases penis before ejaculation or urination.






24. What helps regulate spermatogenesis?






25. (from Jersey Islands in Great Britain) Smallest cow - least milk - highest butterfat %






26. Failure to have one testis (gonad) to descend






27. (male) pushes the testes outward toward the legs for a cool-down off of the body






28. FEED






29. Knife-loose ~1wk of growth. band-loose ~2wks of growth.






30. Indicator of sperm production. the bigger the scrotal circumference the bigger volume of sperm because more seminal vesicles available to produce the sperm






31. ~305 days (altough often longer due to breeding difficulties)






32. Boars and stallions-> deliver semen directly into the cervix. bulls and rams-> deliver semen into the vagina.






33. Look for infection - split - and rupture of the penis






34. 4-6 days






35. (FSH) causes egg to mature in females






36. Front feet and head first. (except for hogs and dogs)






37. 30-38 hours after estrus cycle begins






38. Animals which have many estrous periods per year (ex: cow - sow)






39. Sperm production






40. (male) definition: duct located outside of the testes. 3 parts: head - body - tail. 4 Functions:concentrate sperm - store sperm - transport sperm - site of sperm maturation. entire process takes ~40-60 days






41. 114 days






42. 4-6 days






43. (male) pushes the testes upward toward the body for warmth or protection






44. When are steers and heifers weaned from bottle feeding?






45. Gonadotropic (GnRH) is (FSH and LH). Follical Stimulating (FSH) and Lutinizing Hormone (LH).






46. Supply nutrients for the sperm following ejaculation and deposition into the female reproductive tract






47. Largest dairy cow - largest udder - highly vascular - eat 40-50% dry matter (eat alot) - most total butterfat






48. Urinary calculi.






49. Start of the reproductive tract for the female. located outside of the body






50. Castration tool that uses a band around the testicles which cuts off circulation and eventually the testicles fall off